A slitting machine for steel pipe production

Abstract

The present invention relates to the technical field of steel pipe production, and proposes a longitudinal shearing machine for steel pipe production, comprising a support frame, a support plate fixedly connected to the top of the support frame, a feed trough fixedly connected to the top of the support plate, a feed frame fixedly connected to one end of the top of the support frame, a feeding assembly assembled on the inner side of the feeding frame, a guide assembly assembled on the middle of the top of the support frame, a longitudinal shearing frame fixedly connected to the end of the support frame away from the feeding frame, a longitudinal shearing assembly arranged on the top of the longitudinal shearing frame, the guide assembly is used to adjust the contact position between the pipe and the longitudinal shearing assembly, the longitudinal shearing assembly is used to cut off the pipe, a receiving assembly is arranged on the end of the support frame close to the longitudinal shearing assembly, and the feeding assembly comprises a linear slide bar, a displacement frame, and a feed roller. The above technical scheme solves the problem that the prior art mainly relies on manual feeding by personnel, which makes the personnel strength high and the production efficiency of steel pipes cannot be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe production, and in particular to a longitudinal shearing machine used for steel pipe production. Background Art

[0002] Steel pipe is a kind of steel with a hollow section, whose length is much longer than the diameter or circumference. It can be used to transport fluids and powdered solids and exchange heat energy. Because of its high strength, good corrosion resistance and good toughness, it plays an important role in many application fields.

[0003] Among them, when producing steel pipes, it is necessary to use a slitting machine to cut longer pipes to meet the subsequent use needs. However, the slitting machine in traditional technology mainly relies on manual loading by personnel, which makes the personnel intensity high and the production efficiency of steel pipes cannot be guaranteed;

[0004] Based on this, we propose a longitudinal shearing machine for steel pipe production. Summary of the invention

[0005] The present invention provides a longitudinal shearing machine for steel pipe production, which solves the problem in the related art that manual material loading is mainly relied on by personnel, resulting in high labor intensity and failure to ensure the production efficiency of the steel pipe.

[0006] The technical solution of the present invention is as follows: A longitudinal shearing machine for steel pipe production comprises a supporting frame, a supporting plate is fixedly connected to the top of the supporting frame, a feeding trough is fixedly connected to the top of the supporting plate, a feeding frame is fixedly connected to one end of the top of the supporting frame, a feeding assembly is mounted on the inner side of the feeding frame, a guiding assembly is mounted on the middle part of the top of the supporting frame, a longitudinal shearing frame is fixedly connected to the end of the supporting frame away from the feeding frame, a longitudinal shearing assembly is arranged on the top of the longitudinal shearing frame, the guiding assembly is used to adjust the contact position between the pipe and the longitudinal shearing assembly, the longitudinal shearing assembly is used to cut the pipe, and a receiving assembly is arranged on the end of the supporting frame close to the longitudinal shearing assembly.

[0007] Preferably, the feeding assembly includes a linear slide rod, a displacement frame, a feed roller, a transmission bevel gear, a linkage shaft rod, a driving bevel gear and a center shaft rod. The top end of the inner side of the feed frame is fixedly connected with the linear slide rod, and both ends of the outer side of the linear slide rod are slidably connected with the displacement frame. The bottom end of the displacement frame is rotatably connected with the feed roller, and the top end of the feed roller is fixedly connected with the transmission bevel gear. The middle part of one end of the displacement frame is rotatably connected with the linkage shaft rod, and one end of the linkage shaft rod close to the transmission bevel gear is fixedly connected with the driving bevel gear, and the driving bevel gear is meshed with the transmission bevel gear. The middle part of the inner side of the feed frame is rotatably connected with the center shaft rod, and the two linkage shaft rods are slidably connected to the outer side of the center shaft rod, one end of the feed frame is fixedly connected with a feeding motor, and the output end of the feeding motor is fixedly connected to the center shaft rod.

[0008] Preferably, the feeding assembly also includes an extension frame, a transmission column, a transmission screw, a guide motor, a transmission spur gear and a reduction spur gear. The middle part of the top end of the feeding frame is fixedly connected to the extension frame, one end of the extension frame is rotatably connected to the transmission column, the middle part of the transmission column is threadedly connected to the transmission screw, the top of the extension frame is fixedly connected to the guide motor, the output end of the guide motor is fixedly connected to the transmission spur gear, the outer side of the transmission column is fixedly connected to the reduction spur gear, and the reduction spur gear is meshed with the transmission spur gear, the bottom end of the transmission screw is fixedly connected to the derivation frame, both ends of the derivation frame are rotatably connected with linkage rods, and the ends of the two linkage rods away from the derivation frame are respectively rotatably connected to the two displacement frames, the middle part of the bottom end of the derivation frame is fixedly connected to a stabilizing plate, and the bottom end of the stabilizing plate is fixedly connected to a contact plate.

[0009] Preferably, the guide assembly includes a guide frame, a carrying ring, an assembly ring, a guide shaft rod, a positioning arc plate and a linkage ring, the guide frame is fixedly connected to the middle part of the top end of the support frame, the carrying ring is fixedly connected to the top end of the guide frame, one side of the carrying ring is rotatably connected to the assembly ring, the outer side of the assembly ring is slidably connected to a plurality of guide shaft rods, one end of each guide shaft rod located inside the assembly ring is fixedly connected to the positioning arc plate, one end of the outer side of the assembly ring is rotatably connected to the linkage ring, and the outer side of the linkage ring is fixedly connected to a plurality of guide shaft rods one by one. A corresponding eccentric transmission plate, one end of the eccentric transmission plate away from the linkage ring is rotatably connected to a force-bearing pull rod, and the end of the force-bearing pull rod away from the eccentric transmission plate is rotatably connected to the top end of the corresponding guide shaft rod, the outer side of the assembly ring is fixedly connected to a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected to one of the positioning arc plates, the other end of the outer side of the assembly ring is fixedly connected to a transmission gear ring, one side of the guide frame is fixedly connected to an adjusting motor, the output end of the adjusting motor is fixedly connected to an adjusting spur gear, and the adjusting spur gear is meshingly connected to the transmission gear ring.

[0010] Preferably, the longitudinal shearing assembly includes a longitudinal shearing frame, a driving screw, a driving motor and a guide frame, the top of the longitudinal shearing frame is fixedly connected to the longitudinal shearing frame, the inner side of the longitudinal shearing frame is rotatably connected to the driving screw, one end of the longitudinal shearing frame is fixedly connected to the driving motor, and the output end of the driving motor is fixedly connected to the driving screw, the outer side of the driving screw is threadedly connected to the guide frame, the top of one end of the guide frame is fixedly connected to a bearing seat, the top of the bearing seat is rotatably connected to a slitting shaft, one end of the slitting shaft is fixedly connected to a slitting disk, the other end of the bearing seat is fixedly connected to the slitting motor, and the output end of the slitting motor is fixedly connected to the slitting shaft.

[0011] Preferably, the receiving assembly includes a guide seat, a guide slide rod, a receiving seat and a coil spring. The top of the support frame is fixedly connected to the guide seat at one end close to the longitudinal shear frame. The top of the guide seat is slidably connected to the guide slide rod. The top of the guide slide rod is fixedly connected to the receiving seat. A coil spring is fixedly connected between the bottom of the receiving seat and the guide seat.

[0012] Preferably, a plurality of limiting through grooves are formed on the outer side of the central shaft, a plurality of limiting bars are fixedly connected to the interior of the linkage shaft, and the limiting bars are also slidably connected to the interior of the limiting through grooves.

[0013] Preferably, the top end of the extension frame is fixedly connected with a stabilizing slide rod, the top end of the stabilizing slide rod is fixedly connected with a limiting plate, and the bottom end of the stabilizing slide rod is fixedly connected with the derivation frame.

[0014] Preferably, a plurality of carrying grooves are provided on the inner side of the feeding groove and the inner side of the contact plate, and alloy balls are arranged inside each of the carrying grooves.

[0015] Preferably, the top end of the guide shaft is fixedly connected with an assembly ear, and the end of the force-bearing pull rod away from the deflection frame is connected to the top end of the assembly ear through a rotating shaft.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. In the present invention, through the structural coordination of the feeding assembly, the contact between the feeding roller and the pipe can be utilized to form effective transportation of the pipe, which greatly reduces the feeding intensity of personnel and makes the whole process more convenient.

[0018] 2. In the present invention, through the structural coordination of the guide assembly, the proximity of multiple positioning arc plates can be utilized to quickly position the pipe, thereby avoiding the shaking of the pipe during the operation of the slitting disk, and the rotation of the assembly ring can adjust the contact surface between the pipe and the slitting disk, thereby ensuring the processing efficiency of the slitting disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 A side view of the structure of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the feeding assembly of the present invention;

[0023] Figure 4 For the present invention Figure 4 A partial enlarged view of the middle A;

[0024] Figure 5 It is a schematic diagram of the connection structure between the linkage shaft rod and the central shaft rod of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the guide assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the connection structure of the assembly ring and the linkage ring of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the longitudinal shearing assembly of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the receiving component of the present invention.

[0029] In the figure: 1. Support frame; 2. Support plate; 3. Feed trough; 4. Feed frame; 5. Feed assembly; 6. Guide assembly; 7. Slitting frame; 8. Slitting assembly; 9. Undertaking assembly; 10. Linear slide bar; 11. Displacement frame; 12. Feed roller; 13. Transmission bevel gear; 14. Linkage shaft; 15. Driving bevel gear; 16. Center shaft; 17. Feed motor; 18. Extension frame; 19. Transmission column; 20. Transmission screw; 21. Guide motor; 22. Transmission spur gear; 23. Reduction spur gear; 24. Derivation frame; 25. Linkage rod; 26. Stabilizing plate ; 27. Contact plate; 28. Guide frame; 29. ​​Carrying ring; 30. Assembly ring; 31. Guide shaft; 32. Positioning arc plate; 33. Linkage ring; 34. Eccentric transmission plate; 35. Force pull rod; 36. Hydraulic cylinder; 37. Transmission gear ring; 38. Adjustment motor; 39. Adjustment spur gear; 40. Slitting frame; 41. Driving screw; 42. Driving motor; 43. Guide frame; 44. Bearing seat; 45. Slitting shaft; 46. Slitting disk; 47. Slitting motor; 48. Guide seat; 49. Guide slide; 50. Receiver seat; 51. Coil spring. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1 to Figure 9 As shown, this embodiment proposes a longitudinal shearing machine for steel pipe production, including a support frame 1, a support plate 2 is fixedly connected to the top of the support frame 1, a feed trough 3 is fixedly connected to the top of the support plate 2, a feed frame 4 is fixedly connected to one end of the top of the support frame 1, a feeding assembly 5 is installed on the inner side of the feed frame 4, a guide assembly 6 is installed in the middle of the top of the support frame 1, a longitudinal shearing frame 7 is fixedly connected to the end of the support frame 1 away from the feed frame 4, a longitudinal shearing assembly 8 is arranged on the top of the longitudinal shearing frame 7, the guide assembly 6 is used to adjust the contact position between the pipe and the longitudinal shearing assembly 8, the longitudinal shearing assembly 8 is used to cut the pipe, and a receiving assembly 9 is arranged at one end of the support frame 1 close to the longitudinal shearing assembly 8;

[0033] The feeding assembly 5 includes a linear slide bar 10, a displacement frame 11, a feed roller 12, a transmission bevel gear 13, a linkage shaft rod 14, a drive bevel gear 15 and a central shaft rod 16. The top of the inner side of the feed frame 4 is fixedly connected with the linear slide bar 10, and the two ends of the outer side of the linear slide bar 10 are slidably connected with the displacement frame 11, the bottom end of the displacement frame 11 is rotatably connected with the feed roller 12, and the top of the feed roller 12 is fixedly connected with the transmission bevel gear 13, and the middle part of one end of the displacement frame 11 is rotatably connected with the linkage shaft rod 14, and the end of the linkage shaft rod 14 close to the transmission bevel gear 13 is fixedly connected with the drive bevel gear 15, and the drive bevel gear 15 is meshed with the transmission bevel gear 13, and the middle part of the inner side of the feed frame 4 is rotatably connected with the central shaft rod 16, and the two linkage shaft rods 14 are slidably connected to the outer side of the central shaft rod 16, and one end of the feed frame 4 is fixedly connected with a feeding motor 17, and the output end of the feeding motor 17 is fixedly connected to the central shaft rod 16;

[0034] In detail, a plurality of limit slots are provided on the outer side of the central shaft 16, and a plurality of limit bars are fixedly connected to the interior of the linkage shaft 14, and the limit bars are also slidably connected to the interior of the limit slots. Since the limit bars are connected to the interior of the limit slots, when the linkage shaft 14 slides on the outer side of the central shaft 16, the displacement path of the linkage shaft 14 can be effectively limited, and during the rotation of the central shaft 16, the linkage shaft 14 is driven to rotate by the limit bars;

[0035] Preferably, the top of the extension frame 18 is fixedly connected with a stabilizing slide bar, the top of the stabilizing slide bar is fixedly connected with a limit plate, and the bottom of the stabilizing slide bar is fixedly connected with the derivation frame 24. The stabilizing slide bar can be used to effectively guide the displacement of the derivation frame 24, and the stabilizing slide bar can be prevented from being separated from the connection with the extension frame 18 by cooperating with the setting of the limit plate.

[0036] The feeding assembly 5 also includes an extension frame 18, a transmission column 19, a transmission screw 20, a guide motor 21, a transmission spur gear 22 and a reduction spur gear 23. The middle part of the top of the feeding frame 4 is fixedly connected with the extension frame 18, one end of the extension frame 18 is rotatably connected with the transmission column 19, the middle part of the transmission column 19 is threadedly connected with the transmission screw 20, the top of the extension frame 18 is fixedly connected with the guide motor 21, the output end of the guide motor 21 is fixedly connected with the transmission spur gear 22, the outer side of the transmission column 19 is fixedly connected with the reduction spur gear 23, and the reduction spur gear 23 is meshed with the transmission spur gear 22, the bottom end of the transmission screw 20 is fixedly connected with a derivation frame 24, both ends of the derivation frame 24 are rotatably connected with linkage rods 25, and the ends of the two linkage rods 25 away from the derivation frame 24 are respectively rotatably connected with the two displacement frames 11, the middle part of the bottom end of the derivation frame 24 is fixedly connected with a stabilizing plate 26, and the bottom end of the stabilizing plate 26 is fixedly connected with a contact plate 27;

[0037] Preferably, a plurality of loading grooves are provided on the inner side of the feeding groove 3 and the inner side of the contact plate 27, and alloy balls are provided inside each loading groove. By providing the alloy balls, the pipe can conveniently move on the surface of the alloy balls.

[0038] The guide assembly 6 includes a guide frame 28, a carrying ring 29, an assembly ring 30, a guide shaft 31, a positioning arc plate 32 and a linkage ring 33. The middle part of the top of the support frame 1 is fixedly connected with the guide frame 28, the top of the guide frame 28 is fixedly connected with the carrying ring 29, one side of the carrying ring 29 is rotatably connected with the assembly ring 30, and the outer side of the assembly ring 30 is slidably connected with a plurality of guide shafts 31, and one end of each guide shaft 31 located inside the assembly ring 30 is fixedly connected with the positioning arc plate 32, and one end of the outer side of the assembly ring 30 is rotatably connected with the linkage ring 33, and the outer side of the linkage ring 33 is fixedly connected with a plurality of guide shafts 31. The corresponding eccentric transmission plate 34, the end of the eccentric transmission plate 34 away from the linkage ring 33 is rotatably connected with a force rod 35, and the end of the force rod 35 away from the eccentric transmission plate 34 is rotatably connected to the top of the corresponding guide shaft 31, the outer side of the assembly ring 30 is fixedly connected with a hydraulic cylinder 36, and the output end of the hydraulic cylinder 36 is fixedly connected to one of the positioning arc plates 32, the other end of the outer side of the assembly ring 30 is fixedly connected with a transmission gear ring 37, one side of the guide frame 28 is fixedly connected with an adjustment motor 38, the output end of the adjustment motor 38 is fixedly connected with an adjustment spur gear 39, and the adjustment spur gear 39 is meshed with the transmission gear ring 37;

[0039] Furthermore, the top of the guide shaft 31 is fixedly connected with an assembly ear, and the end of the force-bearing pull rod 35 away from the derivation frame 24 is connected to the top of the assembly ear through a rotating shaft. The arrangement of the assembly ear can ensure the stability of the assembly of the force-bearing pull rod 35 and the linkage effect of the force-bearing pull rod 35.

[0040] The slitting assembly 8 includes a slitting frame 40, a driving screw 41, a driving motor 42 and a guide frame 43. The top of the slitting frame 7 is fixedly connected to the slitting frame 40, the inner side of the slitting frame 40 is rotatably connected to the driving screw 41, one end of the slitting frame 40 is fixedly connected to the driving motor 42, and the output end of the driving motor 42 is fixedly connected to the driving screw 41, the outer side of the driving screw 41 is threadedly connected to the guide frame 43, the top of one end of the guide frame 43 is fixedly connected to a bearing seat 44, the top of the bearing seat 44 is rotatably connected to a slitting shaft 45, one end of the slitting shaft 45 is fixedly connected to a slitting disk 46, the other end of the bearing seat 44 is fixedly connected to a slitting motor 47, and the output end of the slitting motor 47 is fixedly connected to the slitting shaft 45;

[0041] Further, an extension ear is fixedly connected to one end of the slitting frame 40, and a driving motor 42 is connected to one end of the extension ear by bolts;

[0042] Example 2

[0043] like Fig. 9 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a receiving component 9;

[0044] In this embodiment, the receiving assembly 9 includes a guide seat 48, a guide slide bar 49, a receiving seat 50 and a coil spring 51. The top of the support frame 1 is fixedly connected to the guide seat 48 at one end close to the longitudinal shear frame 40. The top of the guide seat 48 is slidably connected to the guide slide bar 49. The top of the guide slide bar 49 is fixedly connected to the receiving seat 50. The bottom of the receiving seat 50 is fixedly connected to the guide seat 48 with a coil spring 51.

[0045] In detail, the inner side of the receiving seat 50 is fixedly connected with an anti-skid plate, and the outer side of the anti-skid plate is provided with anti-skid grooves;

[0046] A specific application of the above two embodiments is that the pipe is first placed inside the feeding trough 3, and the guide motor 21 is started to cause the transmission spur gear 22 to turn the reduction spur gear 23, thereby driving the transmission column 19 to rotate, and the transmission screw 20 is connected with the transmission column 19, so that the transmission screw 20 can be adjusted in position inside the transmission column 19, and pull the push guide frame 24 to move upward. Since the linkage rod 25 is assembled between the displacement frame 11 and the push guide frame 24, when the push guide frame 24 moves upward, it can be moved by The linkage rod 25 pulls the displacement frame 11 to slide on the outside of the linear slide rod 10 until the feed roller 12 contacts the outer wall of the pipe, and then the feed motor 17 is started to drive the central shaft 16 to rotate, and the linkage shaft 14 is connected with the central shaft 16, so that the linkage shaft 14 can rotate with the central shaft 16, and the driving bevel gear 15 drives the transmission bevel gear 13, thereby driving the feed roller 12 to rotate, and the contact between the rotating feed roller 12 and the pipe can be used to transport the pipe under the limit of the feed trough 3;

[0047] The pipe transported by the feeding roller 12 will pass through the assembly ring 30 so that its cutoff point reaches the slitting disc 46, and the hydraulic cylinder 36 is started to push the positioning arc plate 32 connected thereto, so that it is displaced under the limit of the guide shaft 31, and the force-bearing pull rod 35 at the displacement guide shaft 31 pushes the eccentric transmission plate 34. Since the eccentric transmission plate 34 is supported by the linkage ring 33, it can drive the linkage ring 33 to rotate, and pull the remaining guide shafts 31 through the remaining eccentric transmission plates 34, so that multiple positioning arc plates 32 are close to each other, and the pipe is positioned between the multiple positioning arc plates 32. Then, the guide motor 21 is reversely started to displace the push-guide frame 24 downward, and the two displacement frames 11 are urged to move away from each other through the linkage rod 25 to break away from the contact with the pipe. When the push-guide frame 24 is displaced downward, it can drive the contact plate 27 to contact the pipe and effectively limit its end.

[0048] Start the driving motor 42 to drive the driving screw 41 to rotate, cooperate with the connection between the driving screw 41 and the guide frame 43, so that the guide frame 43 can be adjusted along the driving screw 41 to drive the slitting disk 46 to approach the pipe, and start the slitting motor 47 to drive the slitting disk 46 to rotate through the slitting shaft 45, and then use the contact between the slitting disk 46 and the pipe to cut the pipe, and start the adjusting motor 38 to drive the adjusting spur gear 39 to rotate, cooperate with the connection between the adjusting spur gear 39 and the transmission gear ring 37, so as to drive the assembly ring 30 to rotate. Since the pipe is fixed between multiple positioning arc plates 32, it can drive the pipe to rotate and adjust the contact position between the pipe and the slitting disk 46, so as to ensure the operating efficiency of the slitting disk 46. The slit steel pipe is finally received by the receiving seat 50.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slitting machine for steel pipe production, characterized in that: The invention comprises a support frame (1), the top of the support frame (1) is fixedly connected to a support plate (2), the top of the support plate (2) is fixedly connected to a feed trough (3), one end of the top of the support frame (1) is fixedly connected to a feed frame (4), the inner side of the feed frame (4) is equipped with a feeding assembly (5), the middle part of the top of the support frame (1) is equipped with a guide assembly (6), the end of the support frame (1) away from the feed frame (4) is fixedly connected to a longitudinal shear frame (7), the top of the longitudinal shear frame (7) is provided with a longitudinal shear assembly (8), the guide assembly (6) is used to adjust the contact position between the pipe and the longitudinal shear assembly (8), the longitudinal shear assembly (8) is used to cut the pipe, and the end of the support frame (1) close to the longitudinal shear assembly (8) is provided with a receiving assembly (9); The feeding assembly (5) comprises a linear slide bar (10), a displacement frame (11), a feed roller (12), a transmission bevel gear (13), a linkage shaft (14), a drive bevel gear (15) and a central shaft (16); the top end of the inner side of the feed frame (4) is fixedly connected to the linear slide bar (10); both ends of the outer side of the linear slide bar (10) are slidably connected to the displacement frame (11); the bottom end of the displacement frame (11) is rotatably connected to the feed roller (12); the top end of the feed roller (12) is fixedly connected to the transmission bevel gear (13); one end of the displacement frame (11) is A linkage shaft (14) is rotatably connected in the middle, and one end of the linkage shaft (14) close to the transmission bevel gear (13) is fixedly connected to a driving bevel gear (15), and the driving bevel gear (15) is meshingly connected to the transmission bevel gear (13); a central shaft (16) is rotatably connected in the middle of the inner side of the feeding frame (4), and both linkage shafts (14) are slidably connected to the outer side of the central shaft (16); a feeding motor (17) is fixedly connected to one end of the feeding frame (4), and the output end of the feeding motor (17) is fixedly connected to the central shaft (16); The feeding assembly (5) further comprises an extension frame (18), a transmission column (19), a transmission screw (20), a guide motor (21), a transmission spur gear (22) and a reduction spur gear (23); the middle part of the top end of the feeding frame (4) is fixedly connected to the extension frame (18); one end of the extension frame (18) is rotatably connected to the transmission column (19); the middle part of the transmission column (19) is threadedly connected to the transmission screw (20); the top end of the extension frame (18) is fixedly connected to the guide motor (21); and the output end of the guide motor (21) is fixedly connected to the transmission spur gear (22). The outer side of the transmission column (19) is fixedly connected with a reduction spur gear (23), and the reduction spur gear (23) is meshingly connected with the transmission spur gear (22); the bottom end of the transmission screw rod (20) is fixedly connected with a guide frame (24); both ends of the guide frame (24) are rotatably connected with linkage rods (25), and the ends of the two linkage rods (25) away from the guide frame (24) are rotatably connected with two displacement frames (11) respectively; the middle part of the bottom end of the guide frame (24) is fixedly connected with a stabilizing plate (26), and the bottom end of the stabilizing plate (26) is fixedly connected with a contact plate (27); The guide assembly (6) comprises a guide frame (28), a carrying ring (29), an assembly ring (30), a guide shaft (31), a positioning arc plate (32) and a linkage ring (33); the guide frame (28) is fixedly connected to the middle of the top of the support frame (1); the carrying ring (29) is fixedly connected to the top of the guide frame (28); one side of the carrying ring (29) is rotatably connected to the assembly ring (30); the outer side of the assembly ring (30) is slidably connected to a plurality of guide shafts (31); one end of each guide shaft (31) located inside the assembly ring (30) is fixedly connected to the positioning arc plate (32); one end of the outer side of the assembly ring (30) is rotatably connected to the linkage ring (33); the outer side of the linkage ring (33) is fixedly connected to the plurality of guide shafts (31); ) one by one with an eccentric transmission plate (34), one end of the eccentric transmission plate (34) away from the linkage ring (33) is rotatably connected to a force-bearing pull rod (35), and one end of the force-bearing pull rod (35) away from the eccentric transmission plate (34) is rotatably connected to the top of the corresponding guide shaft (31), the outer side of the assembly ring (30) is fixedly connected to a hydraulic cylinder (36), and the output end of the hydraulic cylinder (36) is fixedly connected to one of the positioning arc plates (32), the other end of the outer side of the assembly ring (30) is fixedly connected to a transmission gear ring (37), one side of the guide frame (28) is fixedly connected to an adjustment motor (38), the output end of the adjustment motor (38) is fixedly connected to an adjustment spur gear (39), and the adjustment spur gear (39) is meshingly connected to the transmission gear ring (37).

2. A slitting machine for steel pipe production according to claim 1, characterized in that: The longitudinal shearing assembly (8) comprises a longitudinal shearing frame (40), a driving screw (41), a driving motor (42) and a guide frame (43); the top of the longitudinal shearing frame (7) is fixedly connected to the longitudinal shearing frame (40); the inner side of the longitudinal shearing frame (40) is rotatably connected to the driving screw (41); one end of the longitudinal shearing frame (40) is fixedly connected to the driving motor (42), and the output end of the driving motor (42) is fixedly connected to the driving screw (41); the outer side of the driving screw (41) is threadedly connected to the guide frame (43); the top of one end of the guide frame (43) is fixedly connected to a bearing seat (44); the top of the bearing seat (44) is rotatably connected to a slitting shaft (45); one end of the slitting shaft (45) is fixedly connected to a slitting disk (46); the other end of the bearing seat (44) is fixedly connected to a slitting motor (47), and the output end of the slitting motor (47) is fixedly connected to the slitting shaft (45).

3. A slitting machine for steel pipe production according to claim 2, characterized in that: The receiving assembly (9) comprises a guide seat (48), a guide slide bar (49), a receiving seat (50) and a coil spring (51); the top end of the support frame (1) close to the longitudinal shear frame (40) is fixedly connected to the guide seat (48); the top end of the guide seat (48) is slidably connected to the guide slide bar (49); the top end of the guide slide bar (49) is fixedly connected to the receiving seat (50); and the bottom of the receiving seat (50) is fixedly connected to the guide seat (48).

4. A slitting machine for steel pipe production according to claim 1, characterized in that: A plurality of limiting slots are formed on the outer side of the central shaft (16), a plurality of limiting strips are fixedly connected to the interior of the linkage shaft (14), and the limiting strips are also slidably connected to the interior of the limiting slots.

5. The slitting machine for steel pipe production according to claim 1, characterized in that: The top end of the extension frame (18) is fixedly connected to a stabilizing slide rod, the top end of the stabilizing slide rod is fixedly connected to a limiting plate, and the bottom end of the stabilizing slide rod is fixedly connected to the derivation frame (24).

6. A slitting machine for steel pipe production according to claim 1, characterized in that: A plurality of carrying grooves are provided on the inner side of the feeding groove (3) and the inner side of the contact plate (27), and an alloy ball is arranged inside each of the carrying grooves.

7. The slitting machine for steel pipe production according to claim 1, characterized in that: The top end of the guide shaft (31) is fixedly connected to an assembly ear, and the end of the force-bearing pull rod (35) away from the derivation frame (24) is connected to the top end of the assembly ear via a rotating shaft.

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